We’ve designed Performance Optimizer to temporarily disable apps that you’re not using so you can optimize the performance of your PC. As a result, you may see some program icons disappear from your Windows system tray on the Windows Taskbar. For example, imagine you want to disable an app like Spotify. Performance Optimizer will disable this app’s background processes (including tray icons) until you manually re-launch Spotify from the Windows Start menu, again.
Note: the programs and files visible on your desktop screen should remain untouched and look normal.